题目内容：

went off its course to keep away from the sudden storm
-Where is the plane?I can't see it.
-It went off its ___ to keep away from the sudden stoem.
A、road B、course C、flight D、direction
为什么选B 不选C
off应该是副词 为何还可以跟宾语

优质解答

1）答案应该是b--course 而不是c--flight.
要是你老师觉得还要选flight,让他去修改教材算了.
go off its course
脱离航线
2）off在这个词组里是介词,而不是副词.
off在这里是离开……点的意思,自然是介词.